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Roland HP 24500S Keyboard. has incoming power 120v but no sound

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  • l_kyu May 18, 2011

    Thank you for your prompt response I have acquired the correct owners manual. However it does not appear detailed enough to trouble shoot the problem

  • l_kyu May 18, 2011

    Thanks very much for getting me to the right source. However the Owner's manual doesn't appear to have enough detail for troubleshooting

  • l_kyu May 18, 2011

    Thanks again for your help. I have tried most of your recommendations, so I guess I will search on lineto see if I can source a service manual.



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Here is a link to the ROLAND support page with all the download links to their available online owner's manuals including the one for your model:

To view the Support Page just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information at the website indicated. Then scroll down to your keyboard's model number and click on that link.

After you click on that button, it will ask you if you want to open or save the file.
Choose SAVE.
Now Choose a location on your computer where you would like to save the file.
The easiest place is just right on your DESKTOP so it will be easy to find later.
Now click SAVE.
Once the download completes, click on the OPEN button.

If the document opens then just read it, or print it off if you want, or just leave it on your computer to reference when you need it.
If the document does not open, then you may need a PDF viewer program like ADOBE READER installed on your computer to read PDF documents.
You can download this free at WWW.ADOBE.COM if necessary.
Click on the DOWNLOAD ADOBE READER button on right side of the ADOBE home page when you get there, the follow the onscreen instructions to install the software on your computer.

First of all check that you have power at the electrical outlet on the wall.
Then plug in the keyboard's electrical power cord and use a voltmeter to check that you have power at the other end of the cord.
Then plug the other end into the keyboard and turn on the main power switch. Be sure to listen for any sounds and watch for any lights when you switch that on.
Wait a few seconds for the unit to fully power up, then turn the volume up with the slider and try the keys to see if you can hear anything.

Check to make sure there is not a set of headphones or a headphone adapter plug inserted into the headphone jack under the keyboard on the front left hand side. If anything is plugged into this jack, you will not hear anything on the main speakers. See page 5 of the manual for detailed instructions and illustrations concerning the location of all switches and jacks.

Also make sure the LOCAL CONTROL is set to ON. See page 37 for instructions regarding the MIDI features and LOCAL CONTROL functions.

Also try plugging in a set of stereo headphone into the headphone jack to see if you get any sound out of them. If the above procedures do not help or if you get sound from the headphones but not the main speakers, then there may be a loose connection or a component failure inside the unit which will require disassembly of the unit in order to repair.

If the warranty on the machine is still valid then just return it to the place of purchase for a refund, exchange, or no cost warranty repair. If the warranty has already expired then you may have to open the unit up yourself and look for any blown fuses, loose wires, or bad soldering connections. Look primarily at the main power input connection, the main power switch, the headphone jack, and the speakers. If you see any loose connections or broken wires then just resolder them back. If you are not comfortable conducting this type of troubleshooting and maintenance, then just bring the unit in to a competent instrument technician and let them do it.

Please comment back here to this page if you have any details to add, have any questions, have difficulty accessing the links, or just require further general assistance and I will respond as soon as I see it.

Thank you very much and good luck.


Posted on May 18, 2011

  • Joe2
    Joe2 May 18, 2011

    No you are correct, the owner's manual does not provide much direction in the way of internal repair. An owner's manual is just meant to assist the average user in setting up the unit properly and operating the various functions.

    If you really want to tear into the guts of the thing and repair it, you would need a full SERVICE MANUAL. Unfortunately these things are closely guarded secrets by the manufacturers and service technicians and are never freely available. Normally the service manuals run anywhere from $50 to $100, if you can even find one online somewhere.

    Sorry about that.



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